The beginning of the week brings us big changes in the weather. Thermometers show much higher than the values observed for several days. What is the source of this anomaly? TVnmeteo.pl meteorologist Tomasz Waksinski analyzed the barometric conditions forecasts, which can make us up to 10 degrees above normal at this time of the year.
– On Monday, the weather in Europe and Poland will be controlled by the giant Sigrid, also known as Bert. The award itself proves his rank – tvnmeteo.pl forecaster Tomas Wakshinski said.
The centers of the barometric system are located over the North Sea (where the pressure reaches 967 hectopascals) and in northern Scandinavia (978 hPa). The system will bring dangerous weather to many places, but Central Europe, including Poland, will be in its “warm part”.
Up to 10 degrees warmer than normal
As the meteorologist explained, much hotter and relatively dry air will flow into the country from the southwest. Bright heat reaches Estonia, giving us the advantage of the sun – only clear clouds appear at high and medium levels. In addition, with the air flow from the south in the mountainous region, the classic effect of fog appears – dry and hot wind blows.
On Monday, an extraordinary temperature anomaly will be recorded in most of the Central European and Baltic countries and the southern parts of Scandinavia. According to the model of the European Center for Medium-Range Weather Forecasts (ECMWF), the temperature at a height of two meters will be much higher than the long-term data of 1981-2010. In Poland, the “positive” anomaly in most regions of the country exceeds 8-9 degrees, and in some places it even reaches 10 degrees.
– The maximum temperature on the coast and the west will be 13-15 degrees, and the highest values can be expected in the south-western regions, – said Vakshinsky.
November 25 temperature anomaly at 2 m above the 1981-2010 norm tropicaltidbits.com
Heat over Poland
The forecaster explained that the advection of very warm air is shown even more clearly by the analyzes of the upper barometric fields, where usually from 850 hPa (to a height of about 1.5 km) we can already talk about “free”. atmosphere”, where the analyzes are not disturbed by frictional forces, unevenness of the earth and other local phenomena that can affect air movement. Tomorrow we will be in the “relic” of this warm air current, which is clearly visible on the map below.
November 25 temperature anomaly at 1.5 km altitude compared to 1981-2010 normtropicaltidbits.com
In the maps, which are often referred to as determining the presence of separate air masses, i.e. equivalent-potential temperature distribution, the heat streak is also very clearly visible. In the graphic below, Arctic air masses are shown in pink and purple, shades of blue are cold polar air, green is warm polar air, and yellow and orange are tropical air masses.
Heat in Central Europe 25 November wetterzentrale.de
Warmer air will reach Estonia tomorrow and even move north to central Finland. The maximum temperature in the south-west of Germany will be 19 degrees.
Maximum temperature in Europe, forecast for November 25 meteorolix.com
Main image credit: Shutterstock/tropicaltidbits.com
